Fig. 4

Kaplan–Meier curves of patients with stage III colon cancer in high and low PNI groups stratified by cycles of XELOX adjuvant chemotherapy. a The disease-free survival (DFS) curves in the high PNI group; b the overall survival (OS) curves in the high PNI group; c the DFS curves in the low PNI group; d the OS curves in the low PNI group